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October 24, 2014

Homework Help: Chemistry

Posted by Nadine on Sunday, April 10, 2011 at 7:48pm.

Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10 g/mol.

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